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| Patents for K. F. Matthews | |||||
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| Number | Date | Patentee | Title | Type | |
| 482,281 | Sep. 06, 1892 | G.B. Stevenson | Improvements in Pipe-Wrenches | pipe wrenches | |
| 514,166 | Feb. 06, 1894 | N.E. Smith | Combined Pipe Wrench and Cutter | wrench combination tools | |
| 516,182 | Mar. 13, 1894 | C. Black | Wrench | pipe and nut combination wrenches | |
| 520,529 | May 29, 1894 | K.A. Klose | Wrench | pipe wrenches | |
| 542,265 | Jul. 09, 1895 | K.A. Klose | Pipe Wrench | pipe wrenches | |
| 544,845 | Aug. 20, 1895 | S. Adams, M.M. Cochran | Plow | auxiliary wrenches | |